DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1113M/T-DIG (Maintenance/Test Digital Port)
9
Digital Port Loop Around Test (#13)
This test is a modification of the Voice and Control Channel Local Loop Test used
by Digital Station (DIG-LINE) maintenance. This test does not perform the control
channel and secondary information channel loop around tests as described for
DIG-LINE, as these data paths do not exist for the Maintenance/Test Digital Port.
The primary information channel is tested by first looping back the data channel
onto the TDM Bus, and then sending a digital count from the Tone-Clock circuit
pack and receiving the same digital count with a general purpose tone detector.
A conference test is done next for the primary information channel. This test is
the same as Conference Test (#6).
Only one value (Pass, Fail, or Abort) is generated as a result of the two tests. If
either fails or aborts, the sequence is stopped.
2000 ABORT Response to the test request was not received within the allowable time
period.
2100 ABORT System resources required to run this test are not available.
1. Retry the command at 1-minute intervals a maximum of 5 times.
2. If the test continues to abort, escalate the problem.
Any FAIL The NPE of the tested port was found to be transmitting in error. This will
cause noisy and unreliable connections.
1. If the remaining ports are currently not in use (yellow LED is off), try to
reset the circuit pack. Then repeat the test.
2. If the test fails again, replace circuit pack.
PASS The port is correctly using its allocated time slots. User-reported troubles on
this port should be investigated using other port tests and by examining
station, trunk, or external wiring.
Table 9-441. TEST #9 NPE Cross Talk Test — Continued
Error
Code
Te s t
Result Description/ Recommendation
Continued on next page
